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What is an ASN? Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.
The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS1201 at robtex .
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Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more. Traceroute →
$ traceroute -a -n -q1 -f3 128.82.72.197
traceroute to 128.82.72.197 (128.82.72.197 ): 64 hops max, 52 byte packets
Measurement taken from IPinfo ProbeNet in Ashburn, US
On November 5, 2026
Neighbours by global rank Log scale. The dashed line marks this network.
Powered by IP to ASN data IPs in this network linked to physical places, based on their Wi-Fi networks.
Places IPs 5 5 New IPinfo Places identifies hotels, airports, stadiums, and more with building-level precision.
Explore Places There are 3 peers for this ASN.
ASN Name Rank AS1299 Arelion Sweden AB #11 AS22773 Cox Communications Inc. #46 AS40220 Virginia Polytechnic Institute and State Univ. #8,642
There are 3 upstreams for this ASN.
ASN Name Rank AS1299 Arelion Sweden AB #11 AS22773 Cox Communications Inc. #46 AS40220 Virginia Polytechnic Institute and State Univ. #8,642
There are 0 downstreams for this ASN.
No downstreams found.
Important routers in AS1201 Share of IPv4 footprint per hexagon Less More
Held location over 90 days 97%
Held location over 1 year 99%
Median days between moves 549 days
Geolocation scope City How consistently this network's IPs hold their geolocation. Read relative to the network type, not as a quality score.
There are 35 domain names hosted across 15 IP addresses on this ASN.
70 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more
IP Address ASN Details 128.82.32.4 Ping AS1201 Old Dominion University #12,437 5.72ms from Ashburn, US 128.82.242.2 Ping AS1201 Old Dominion University #12,437 5.73ms from Ashburn, US 128.82.29.5 Ping AS1201 Old Dominion University #12,437 6.59ms from Ashburn, US 128.82.205.214 Ping AS1201 Old Dominion University #12,437 5.90ms from Ashburn, US 128.82.204.103 Ping AS1201 Old Dominion University #12,437 5.63ms from Ashburn, US 128.82.164.191 Ping AS1201 Old Dominion University #12,437 5.66ms from Ashburn, US 128.82.227.2 Ping AS1201 Old Dominion University #12,437 5.79ms from Ashburn, US 128.82.243.132 Ping AS1201 Old Dominion University #12,437 5.60ms from Ashburn, US 128.82.107.1 Ping AS1201 Old Dominion University #12,437 6.02ms from Ashburn, US 128.82.253.58 Ping AS1201 Old Dominion University #12,437 5.82ms from Ashburn, US
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A pronounced day/night rhythm — the signature of a consumer/eyeball network whose users sleep at night.
Netblock Company Num of IPs Old Dominion University
65,536 Old Dominion University
65,536 Old Dominion University
32,768 Old Dominion University
32,768 Old Dominion University
32,768 Old Dominion University
16,384 Old Dominion University
16,384 Old Dominion University
16,384 Old Dominion University
16,384 Old Dominion University
16,384
Show more IP Ranges
Times shown in United States local time (UTC-5). Less More
Peak hour 10:00–11:00
Active hours 20 hrs
Weekend vs weekday weekdays heavier
Busiest day Mon
Network type Education
Geography United States 
University